* Impacts: accumulating snow may impact travel on mountain roads including Interstate 5 over the Grapevine and Highway 58 through the Tehachapi Pass. Visibilities will be reduced in areas of blowing and drifting snow.

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow will cause travel difficulties. Be prepared for slippery roads and limited visibilities... and use caution while driving.

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Today Showers. High near 48. Light south wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight A 40 percent chance of showers. Mostly cloudy, with a low around 33. Northwest wind around 5 mph.

Saturday A 30 percent chance of showers. Partly sunny, with a high near 55. West wind around 5 mph becoming south southwest in the morning.

Saturday Night Mostly clear, with a low around 35. Southwest wind around 5 mph becoming north northwest in the evening.

Sunday Sunny, with a high near 66. North northeast wind around 5 mph becoming calm.

Sunday Night Clear, with a low around 39. Calm wind becoming south around 5 mph in the evening.

Monday Sunny, with a high near 73. Northeast wind around 5 mph becoming west southwest in the morning.

Monday Night Mostly clear, with a low around 42. West wind 10 to 15 mph becoming north 5 to 10 mph in the evening.

Tuesday Sunny, with a high near 76. North northeast wind around 5 mph becoming west in the morning.